block/vhdx: Make vhdx_create() always set errp
This patch makes vhdx_create() always set errp in case of an error. It also adds errp parameters to vhdx_create_bat() and vhdx_create_new_region_table() so we can pass on the error object generated by blk_truncate() as of a future commit. Signed-off-by: NMax Reitz <mreitz@redhat.com> Reviewed-by: NKevin Wolf <kwolf@redhat.com> Message-id: 20170328205129.15138-2-mreitz@redhat.com Reviewed-by: NStefan Hajnoczi <stefanha@redhat.com> Signed-off-by: NMax Reitz <mreitz@redhat.com>
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